Ingredients:

5 cups all-purpose flour
1 cup plus 3 tablespoons sugar, divided
4 teaspoons baking powder
2 teaspoons baking soda
1/8 teaspoon salt
1-1/4 cups shortening
4 egg yolks
1/2 cup sour cream
1/4 cup water
1 teaspoon vanilla extract
2-1/2 cups chopped walnuts, divided
1 jar (18 ounces) seedless strawberry jam

Directions:

In a large bowl, combine the flour, 1 cup sugar, baking powder, baking soda and salt. Cut in shortening until mixture resembles coarse crumbs. In a bowl, whisk the egg yolks, sour cream, water and vanilla; gradually add to crumb mixture, tossing with a fork until dough forms a ball. Divide into thirds. Chill for 30 Minutes.

Between two large sheets of waxed paper , roll out one portion of dough into a 15×10 inch rectangle. Transfer to an un greased 15x10x1 inch baking pan. Sprinkle with 1-1/4 cups walnuts and 2 tablespoons sugar. Roll out another portion of dough into a 15-in. x 10-in. rectangle; place over walnuts. Spread with jam; sprinkle with remaining walnuts and sugar.

Roll out remaining pastry cut into strips. Arrange in a crisscross pattern over filling. Trim and seal edges. Bake at 350* for 25-30 minutes or until golden brown. Cool on a wire rack. Cut into bars.